Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import android.content.Context;

import android.graphics.Bitmap;

import android.renderscript.Allocation;
import android.renderscript.Element;
import android.renderscript.RenderScript;
import android.renderscript.ScriptIntrinsicBlur;

public class Main {
    private static final float BITMAP_SCALE_LIGHT = 0.1f;
    private static final float BLUR_RADIUS_LIGHT = 1.0f;

    public static Bitmap blurLight(Context context, Bitmap image) {
        int width = Math.round(image.getWidth() * BITMAP_SCALE_LIGHT);
        int height = Math.round(image.getHeight() * BITMAP_SCALE_LIGHT);

        Bitmap inputBitmap = Bitmap.createScaledBitmap(image, width, height, false);
        Bitmap outputBitmap = Bitmap.createBitmap(inputBitmap);

        RenderScript rs = RenderScript.create(context);
        ScriptIntrinsicBlur theIntrinsic = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
        Allocation tmpIn = Allocation.createFromBitmap(rs, inputBitmap);
        Allocation tmpOut = Allocation.createFromBitmap(rs, outputBitmap);
        theIntrinsic.setRadius(BLUR_RADIUS_LIGHT);
        theIntrinsic.setInput(tmpIn);
        theIntrinsic.forEach(tmpOut);
        tmpOut.copyTo(outputBitmap);

        return outputBitmap;
    }
}